21153889 is an odd 8-digits composite number following 21153888
and preceding 21153890 . In scientific notation, it is written as 2.1153889 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 21101760 positive integers (up to 21153889) that are relatively prime to 21153889.
21153889 has 4 divisors, whose sum is 21206020
The reverse of 21153889 is 98835112
Previous prime number is 409
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million one hundred fifty-three thousand eight hundred eighty-nine
Scientific notation
2.1153889 × 10^7
Engineering notation
2.1153889 × 10^6
Prime Factorization
409 × 51721
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21153889
Product of the distinct prime numbers
The prime factorization of 21153889 is 409 × 51721.
Since it has a total of 2 prime factors.
9 , 5 , 86 , 21 , 552 , 144 , 2462 , 5014 , 54880 , 54317 , 109030 , 13850 , 1237282 , 4648130 , 83763686 , 20261774 , 255434010 , 95473869 , 4724669741 , 6330628454
n×2
42307778
n×3
63461667
n×4
84615556
n×5
105769445
n÷2
10576944.5
n÷3
7051296.3333333
n÷3
5288472.25
n÷5
4230777.8
n2
447487019824321
n3
9.4660907463045E+21
n4
2.0024463291125E+29
n5
4.2359527374504E+36
2 √n
4599.3357129046
3 √n
276.56469573198
4 √n
67.818402464999
5 √n
29.179513329214
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21153888
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21153889 can be divided by 4 positive divisors.
The sum of these divisors (counting 21153889) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101100100001100001
3
Ternary
1110210201200101
4
Quaternary
1100230201201
5
Quinary
20403411024
6
Senary
2033222401
8
Octal
120544141
10
Decimal
21153889
12
Duodecimal
7101a01
16
Hexadecimal
142c861
20
Vigesimal
6c44e9
36
Base36
cleg1
md5
4eca36d13d032885e770cbb732c12b25
sha1
517c9f2d1cce8a3dc393b9c62e41e3e9cf562d91
sha256
dba3e9dc993130a6e53d2f23ed3769e46113e660d14b10fd18338f0d8b2078c6
sha512
40f34fa22aa715e813dd39624228c2f2e4a146dc4ddd5315a8e2fac809349b68cef010e4295d9cd934ff897a9248d0b7fa5c7bd434d11562555cd412c36af61f
ripemd-160
d17eff7a9f5a86eb50435ef061d6dd7e890e5d44
Diameter
42307778
Circumference
132913804.55451
Area
1.4058219340569E+15
Volume
3.9651468195739E+22
Surface area
5.6232877362275E+15
Circumference
132913804.55451
Perimeter
84615556
Area
447487019824321
Diagonal
29916116.720735
Surface area
2684922118945926
Volume
9.4660907463045E+21
Space diagonal
36639610.525672
Perimeter
63461667
Area
1.9376756351583E+14
Altitude
18319805.262836
Surface area
1.9376756351583E+14
Volume
1.1155894930065E+21
Height
9972038.9069117